Spray-burner.



W. A. BENNETT & J. L. ARDERN.

SPRAY BURNER. APPLICATION FILED FEB. 24, 1911.

1,000,227. Btented Aug. 8, 1911.

Q k U '5 V F g Q 0 Q a.

regulating the WILLIAM ALBERT BENNETT, OF BOLTON, AND JAMES LIPIROIARDERN, 0F NEWTON LE-XVILLOWS, ENGLAND.

SPRAY-BURNER. I

Specification of Letters Patent.

Patented Aug. 8, 1911,

Application filed February 24, 1911 Serial No. 610,535. I

To all whom it may concern:

Be it known that we, WILLIAM ALBERT BENNETT and JAMES LIPTROT ARDERN,subjects of the King of Great Britain and Ireland, the former a residentof Bolton, in the county of Lancaster, England, and the latter aresident of Newton le-llillows, in the aforesaid county, England, haveinvented certain new and useful Improvements in Spray-Burners, of whichthe following is a specification.

Our invention relates to improvements in oil burners for furnaces andother purposes and particularly tosuch as are used for burning crudeoils, creosote and the like, the object being to provide a burnerwhereby the oil is more etlicicntly consumed than is the case with thoseat present in use.

Our invention relates to that type of burner in which the oil is mixedwith air of steam and delivered in the form of a jet, helical screwdevices being used for giving a rotary or screw-like motion to the airor steam and oil and a central spindle for quantity of oil drawn throughby the vacuum caused by the flow of air or steam or for entirelyshutting oft the supply.

()ur invcntion will be fully described with reference to theaccompanying drawings in which,

Figure 1 is a longitudinal section of a burner constructed in accordancewith our invention, lfiig. 2 elevation of the nozzle end, Fig. 3elevation of the central regulating spindle and Fig. 4 elevation of anin'iprovcd form of nozzle forming one of the main features of ourinvention.

The shell of the burner is made in two parts 7.: and 7). The part 7rcarries the valve spindle 0 having a screw threaded portion w whichengages with a screw threaded portion on the part Z The valve spindleri'has an operating handle n at one end and 21 conical valve '2' at theother end. A shortcollar a is providcd at the larger end oi the valve7', and this collar has helical grooves 71 in its periphery throughwhich the oil issues. The part 7.2 of the shell is provided with an oilinlet branch n on one side. A nozzle 1/ is secured inside the part b ofthe shclh and Forms therewith an air or strain chamber. and this nozzleis provided at one end portion with two screw threaded por tions and jhaving a flange J between them. The part 7' is screwed into the steamchamber 6, and the part 7' isscrewed into the part 70 of the shell, sothat the two parts of the shell are coupled together and either part maybe removed at will forrpair.

The steam or air chamber is provided on one side with an inlet b5. ch 0for steam or air, and it has a screw threaded projeo; tion Z) at itsfree engi e, The freecnd portion of the nozzle is arranged to'projectfrom the part b, and it is provided with a 'alve seat (1 at a littledistance from its extreme end, for the valve r to engage with. T he freeend portion of the nozzle is formed of two cones, and the exterior conehas an annular bell-mouthed outlet 7) around the valve r. The free endportion of the nozzle is provided with a guide (Z which is formed ofhelical ribs I). having helical grooves 0 between them. A cap 9 isscrewed upon the screw threaded projection b and bears against the outerend portion of the guide (Z, which is conical in form, and thereby formsnarrow outlets f for steam or air around the extreme end portion of thenozzle.

The nozzle a is provided with a cylinder t in which the collar 8 isslidable, and the cylindrical bore 25 is connected with the oil space ofthe part in by an annular passage m around the valve spindle. I

The steam or air which enters through the branch 0 has a whirling motionimparted to it as it. passes tl-w-igh the grooves c, and the oil has awhirling motion imparted to itas it passes through the grooves 11. Thesewhirling streams mingle and burn outside the cap 9, and as the valveseat (1 is arranged at a distance from the point where combustion takesplace it does not become obstructed with burned oil or otherwise injuredby the heat,

What we claim is:

In a burner, the combination, with an outer shell provided with inletsfor oil and for pressure fluid, ot a nozzle having one end portionsccured in the shell between the said inlets and having acylindricalbore which communicates with the oil inlet, said c I I 1,000,227

mm? the pfojecting end portion In tesfimony whereof We have herefintomuzzle and forming outlets therewish, set our hands in the presence oftwo Wit- 10 111d mam-we spindle opemtively connected nesses. r with thesaid shell and having a conical WILLIAM ALBERT BENNETT.

5 valve for engaging with the valve seat and JAMES LIPTROT ARDERQN.

having also a collar provided with helical WVitnesses: gl'oeveefor theoil and arranged to-slide in WILLIAM W. TAYLOR,

the said cylindrical bore. AMY E. Evms.

